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Cisco IOS Release 12.1(5)YA
Cisco IOS Voice Features on IGX 8400 Series
Universal Router Module
Feature History
This feature module provides an overview of Cisco IOS voice features supported on the Cisco IGX
8400 Series Universal Router Module (URM), Release 12.1(5)YA. This document provides links to
Cisco IOS Release 12.1 voice feature documentation, and contains examples to configure Voice over IP
(VoIP) and Voice over ATM (VoATM).
This document includes the following sections:
• Feature Overview, page 1
• Configuration Tasks, page 3
• Configuration Examples, page 7
Feature Overview
The URM is a Cisco IOS-based IP router blade that enables users to provision Voice over IP (VoIP) and
Voice over ATM (VoATM) on a Cisco IGX 8400 series platform. The voice and routing capabilities of
the URM have been derived from the Cisco 3660 series routers, while the ATM capabilities of the URM
have been derived from the ATM OC/3 network module for the 2600 and 3600 Series routers. The
embedded UXM-E processor supports one OC3 ATM port and the embedded router supports one OC3
ATM port similar to the 1-port OC-3/STM-1 ATM Circuit Emulation Service network module for the
Cisco 3600 series routers. These ATM ports are connected to each other internally.
In addition to VoIP and VoATM, IP routing and Cisco IOS command language interface (CLI)
commands—which allow configuration of the voice ports and dial peers—are now available on the
Cisco IGX 8400 series platforms.
The URM interoperates with all Cisco IOS-based voice products and supports 30 voice channels with
high-complexity codec types and 60 voice channels with medium-complexity codec types. Note that
only digital voice ports are supported on the URM; analog ports are not supported.
Cisco IOS Release 12.1(5)YA is the first release supported on the Cisco IGX 8400 URM.
Release Modification
12.1(5)YA Support for selected Cisco IOS voice features was introduced in
Cisco IGX 8400 Series Universal Router Module (URM).